Ionia Weather Forecast

    • 76
    • 95

    Mostly Sunny

    • 67
    • 89

    Partly Sunny

    • 63
    • 86

    Partly Sunny

    • 63
    • 82

    Rain Showers Likely

    • 63
    • 83

    Rain Showers Likely

    • 62
    • 80

    Chance Thunderstorms

Today 14 Jul Ontario

Sunny, hot and more humid with Highs Ranging from the lower 90s on the Hilltops to the mid 90s across the lower Elevations. West Winds 10 to 20 Mph with Gusts up to 30 Mph in the afternoon. Heat index Values up to 105.

Tonight 14 Jul Ontario

Mainly clear. Very warm and muggy with Lows in the mid 70s. West Winds 10 to 15 Mph with Gusts up to 30 Mph.

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Ionia Temperature Statistics

July Temperature

Rochester, Greater Rochester International Airport (15.5 miles)

  • Lowest 11 July, 2026

    61 °F

  • Average July

    76.5 °F

  • Highest 1 July, 2026

    94.6 °F

Climate (2021–2026)

Rochester, Greater Rochester International Airport (15.5 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    59.5 °F
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